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  • Yoshida

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    Olvasgattam kicsit turbó ügyben :)

    "While engines usually have an rpm limit of 5,000 - 7,000 rpm, turbos spin at up to 150,000 rpm! In turbo-charged cars without intercoolers, temperatures can shoot over 150 degrees C. Did you know that inertia keeps the turbo spinning even after you switch the engine off? A hot shutdown is one of the top reasons behind turbocharger failure. All the mass-market cars have oil-cooled turbos where the oil dissipates heat and prevents damage to the bearings inside. There's also the issue of heat soak from exhaust gas. The worst thing you can do to your turbo is switch the engine off immediately after a hard run. "

    Tehát első számú meghibásodási oknak írják a motor lekapcsolását kemény menet után.

    De írják az intercoolert is, ha jól tudom a 3-as laguna nagy dieselekben van, ugye? Tehát ott már eleve nem melegszik annyira fel valszeg a turbó.

    "Some folk insist that modern water-cooled turbos don't require a cool down period after a drive. While they are partially correct, remember that the national engines of India (Fiat's 1.3L MJD & Renault-Nissan's 1.5L DCi) are NOT water-cooled. Yes, nearly all of the mass market cars have conventional oil-cooled turbochargers. It's only some premium cars (not all) costing over Rs. 15 lakh that employ water-cooled blowers. Even then, it doesn't hurt to let that Mercedes turbo cool off for a minute after a hard drive. Further, not all turbos are built equal. If your turbo is fragile because of cost-cutting or design defects, it's all the more vulnerable to premature wear. At the end of the day, it's only a matter of 30 seconds. While there are a lot of valid arguments supporting the cause of idling, even the naysayers will agree you've got nothing to lose by practicing the idling rule."

    Na most itt meg azt írja, a vízhűtéses turbók szintén kevésbé igényesek erre a hajtás utáni járatásra.

    Erre is rákerestem, mint az intercoolerre, és olyat árulnak, hogy 2.0 dci-hez turbó, vízhűtéses.
    Szóval ha intercooleres, és vízhűtéses a turbó, akkor lehet már annyi visszahűtés is elég neki, amíg topiktársunk lejön a pályáról, és beáll a kútra. (gondolom a kihajtón már nem padlógázzal, 200-al jön :) )

    [link]

    Persze csak laikusként gondoltam végig a dolgokat.

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